BOV quickie Options

[pittfirefighter]

Turbo question, i run a pretty stock 96 celica ST so this isn't for me but a general question for a friend that just got himself an Evo (damn its nice). Anyways, with a new greddy type rs blowoff valve installed, what else must be installed to get that "whoosh" sound everyone is so fond of? I hear it needs an open element style air filter? However it looks that the Evo has a cold air intake stock, so is this referring to the turbo intake? I think this question is pretty general for all types of cars but if i'm wrong please let me know. Just what does he need to get the "whoosh"?

[brianforster]

he needs to vent the blow off valve to atmosphere to get the sound. cars without the "pshh" sound are probably routing it back into the intake. thus it is muffled.

[pittfirefighter]

it is re-circulating to the intake but we can't hear any difference, does it really muffle it that much?

[presure2]

it is re-circulating to the intake but we can't hear any difference, does it really muffle it that much?

yes.
with it recirculated, you will barely hear it, if at all.

[Culpable04]

before he changes the set-up, consider the advantages of recirculation. I mean the sound is cool, but there is a reason why is recirculated.

[brianforster]

trust me , not only does the sound get old, but so does the attention from non enthusiast passengers, other cars, etc..

[pittfirefighter]

yeah i told him that recirc is the best setup for the car and hes going to add a new intake and conical filter which is supposed to make the BOV noticeable but not attention grabbing from 10 blocks away, thanks for the help!

[bufferdan]

whoosshh it all over the place!